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Triplet lifetime in gaseous argon. / Akashi-Ronquest, Michael; Bacon, Amanda; Benson, Christopher; Bhattacharya, Kolahal; Caldwell, Thomas; Formaggio, Joseph A.; Gastler, Dan; Grado-White, Brianna; Griego, Jeff; Gold, Michael; Hime, Andrew; Jackson, Christopher M.; Jaditz, Stephen; Kachulis, Chris; Kearns, Edward; Klein, Joshua R.; Ledesma, Antonio; Linden, Steve; Lopez, Frank; MacMullin, Sean; Mastbaum, Andrew; Monroe, Jocelyn; Nikkel, James; Oertel, John; Gann, Gabriel D. Orebi; Ortega, Gabriel S.; Palladino, Kimberley; Rielage, Keith; Seibert, Stanley R.; Wang, Jui-Jen.

In: The European Physical Journal A, Vol. 55, 176, 10.2019, p. 1-11.

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Accepted Manuscript
Accepted author manuscript, 3.77 MB, PDF document

Michael Akashi-Ronquest
Amanda Bacon
Christopher Benson
Kolahal Bhattacharya
Thomas Caldwell
Joseph A. Formaggio
Dan Gastler
Brianna Grado-White
Jeff Griego
Michael Gold
Andrew Hime
Christopher M. Jackson
Stephen Jaditz
Chris Kachulis
Edward Kearns
Joshua R. Klein
Antonio Ledesma
Steve Linden
Frank Lopez
Sean MacMullin
Andrew Mastbaum
John Oertel
Gabriel D. Orebi Gann
Gabriel S. Ortega
Kimberley Palladino
Keith Rielage
Stanley R. Seibert
Jui-Jen Wang

Abstract

MiniCLEAN is a single-phase liquid argon dark matter experiment. During the initial cooling phase, impurities within the cold gas (<140 K) were monitored by measuring the scintillation light triplet lifetime, and ultimately a triplet lifetime of 3.480 ± 0.001 (stat.) ± 0.064 (sys.) µs was obtained, indicating ultra-pure argon. This is the longest argon triplet time constant ever reported. The effect of quenching of separate components of the scintillation light is also investigated.

Original language	English
Article number	176
Pages (from-to)	1-11
Number of pages	11
Journal	The European Physical Journal A
Volume	55
Early online date	16 Oct 2019
DOIs	https://doi.org/10.1140/epja/i2019-12867-2
Publication status	Published - Oct 2019